20-letter words containing a, f, i, n, c
- second law of motion — any of three laws of classical mechanics, either the law that a body remains at rest or in motion with a constant velocity unless an external force acts on the body (first law of motion) the law that the sum of the forces acting on a body is equal to the product of the mass of the body and the acceleration produced by the forces, with motion in the direction of the resultant of the forces (second law of motion) or the law that for every force acting on a body, the body exerts a force having equal magnitude and the opposite direction along the same line of action as the original force (third law of motion or law of action and reaction)
- senior aircraftwoman — a rank in the Royal Air Force comparable to that of a private in the army, though not the lowest rank in the Royal Air Force
- sergeant first class — a noncommissioned officer ranking next above a staff sergeant and below a first or master sergeant.
- shifting cultivation — a land-use system, esp in tropical Africa, in which a tract of land is cultivated until its fertility diminishes, when it is abandoned until this is restored naturally
- sinfonia concertante — a type of concerto for two or more solo instruments accompanied by an orchestra
- soft gelatin capsule — A soft gelatin capsule is a type of capsule that is usually used to contain medicine in the form of liquid or powder, and which dissolves more quickly than a hard gelatin capsule.
- solitary confinement — the confinement of a prisoner in a cell or other place in which he or she is completely isolated from others.
- spanish west african — of or relating to the former Spanish overseas territory of Spanish West Africa (now the overseas provinces of Ifni and Spanish Sahara) or its inhabitants
- specific conductance — conductivity (def 2).
- specific performance — (especially in the sale of land) literal compliance with one's contractual promises pursuant to a judicial mandate.
- specific-conductance — conductivity (def 2).
- stare sb in the face — If a situation or the answer to a problem is staring you in the face, it is very obvious, although you may not be immediately aware of it.
- surface-active agent — any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid.
- tchebycheff equation — a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.
- there is no call for — If you say that there is no call for someone to behave in a particular way, you are criticizing their behaviour, usually because you think it is rude.
- too much information — I don't want to hear any more
- toxemia of pregnancy — an abnormal condition of pregnancy characterized by hypertension, fluid retention, edema, and the presence of protein in the urine.
- uncertificated share — a share of a mutual fund credited to the account of a shareholder without the physical issuance of a certificate evidencing ownership.
- unified screw thread — a screw thread system introduced for defence equipment (1939–44), in which the thread form and pitch were a compromise between British Standard Whitworth and American Standard Sellers: adopted by the International Standards Organization
- wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
- whole-life insurance — a type of insurance with a savings element that is guaranteed to pay out on death provided premiums have been paid as required by the policy
- whyte classification — a system for classifying steam locomotives according to the total number of wheels on the front trucks, drivers, and rear trucks, in that order. For example, a Pacific locomotive is designated as 4-6-2.
- with a pinch of salt — without wholly believing; sceptically
- working-capital fund — a fund established to finance operating activities in an industrial enterprise.
- zone of accumulation — B horizon.